The study is a cluster randomised control trial, which aims to investigate the effectiveness of music therapy in minimising Behavioural and Psychological Symptoms of Dementia (BPSD) in older adults with dementia. In particular, the study aims to identify the main components of music therapy that are key in achieving this. The study will also explore carers' perceptions of music therapy, and investigate whether carers become more attentive to patients' needs and more able to manage patients' BPSD as a result of the music therapy programme.